ANWOK Ball Screw SFU1605-400mm-C7 - Antibacklash Precision for CNC

In this review of the ANWOK Ball Screw SFU1605-400mm-C7 the bottom line is straightforward: this is a compact, high-precision ballscrew suited to hobby and light industrial CNC builds that need low noise and accurate axial motion. The reviewer found the 400mm length and antibacklash nut deliver noticeably smoother linear travel compared with generic ACME screws, and the CF54 steel construction gives the unit a durable feel. For builders who prioritize reduced stick-slip, higher transmission efficiency and standard BK10/BF10 end machining, this product is worth considering.

Key Features

• Antibacklash nut: minimizes backlash so positioning is more repeatable and straight cuts are easier to achieve.
• CF54 steel shaft: provides good wear resistance and a robust feel for extended use in CNC machines.
• 400mm overall length: offers a mid-range travel length that fits many small to medium routers and milling setups.
• Low operating noise: reduced mechanical noise during motion improves workshop comfort and indicates efficient rolling contact.
• Standard end machining: BK10/BF10 compatible ends with a 6.35mm x 10mm coupler hole make integration with common spindle and motor couplers straightforward.
• High transmission efficiency: the ballscrew design reduces drive power required and generates less heat under load.

Who It's For

The ANWOK SFU1605-400mm is aimed at CNC hobbyists, small machine builders and technicians who need a compact, accurate linear drive with reduced backlash and quieter operation. It is a practical upgrade where the goal is improved positioning accuracy and smoother motion without changing drive electronics.

It is less suitable for extremely heavy industrial loads or long-travel gantries where larger diameter screws or custom lengths would be required; those users should look for higher capacity or longer screws. If you need nonstandard end machining or an exact proprietary interface, confirm compatibility before purchase.

Pros & Cons

Pros

• Relatively high precision and reduced stick-slip thanks to the antibacklash nut.
• Durable CF54 steel construction with good wear resistance for longer service life.
• Standard BK10/BF10 end machining and common coupler hole make installation simple.
• Low operating noise and efficient transmission reduce heat and motor load.

Cons

• Length is fixed at 400mm; buyers needing much longer travel will need to order a different length option.
• Not specified for extreme heavy-duty aerospace or large industrial actuators without confirmatory load ratings.

Specifications

Our Verdict

The ANWOK SFU1605-400mm-C7 is a sensible, good-value choice for hobbyists and small shop CNC builders who want quieter operation, better positional repeatability and a durable CF54 steel shaft. It is especially useful when replacing lead screws or upgrading to a ballscrew for improved efficiency, provided the 400mm travel and standard end machining meet the machine requirements.

Frequently Asked Questions

Can this ballscrew be fitted to common motor couplers?
Yes, the coupler end inner hole of 6.35mm x 10mm and BK10/BF10 end machining make it compatible with many standard couplers.

Is the length configurable?
The listed unit is 400mm long; the seller offers longer lengths on request ranging from roughly 9.84 in to 59 in, so contact support for custom lengths.

How durable is the screw material?
The shaft uses CF54 steel which is described as having good wear resistance for long-term service in CNC and linear motion applications.